Just received a message as below to request to switch the PHP version, is it necessary to make the change. Should I turn to Godaddy to make this change, or I can just make the switch by myself? and how to do it step by step since I nearly have no idea about this, much appreciated for having your help!
"We have detected that your server is using PHP 5.4.45 which is obsolete and no longer receives official security updates by its developers. The Joomla! Project recommends upgrading your site to PHP 5.6 or later which will receive security updates at least until 2018-12-31. Please ask your host to make PHP 5.6 or a later version the default version for your site. If your host is already PHP 5.6 ready please enable PHP 5.6 on your site's root and 'administrator' directories – typically you can do this yourself through a tool in your hosting control panel, but it's best to ask your host if you are unsure."